choose the correct answer
4. Conduction of heats happens between two objects
a. only when the two objects touch each other
b. only when the two objects do not touch each other
c. when there is mass movement of the objects
d. when the two objects are separated by a vacuum
5. Land breeze and sea breeze are set up in coastal areas because of
uneven heating of land and water
b. lack of trees
c. pollution in the air
d. clouds preventing the sunlight reaching the land.
6. Cooking utensils are provided with plastic or wooden handles because they are
a. good conductors of heat
b. bad conductors of heat
c. used to increase convection
d. used to reduce convection
7. Convection is the main method of heat transfer in
a. air and water
b. solids
vacuum
d. water, but not in air
8. A thermos flask is constructed to minimize heat loss due to
a. Convection
b. Conduction
c. Radiation
d. All of the above
Answers
Answered by
0
Answer:
4) c
5) d
6) b
7) d
8) b...............
Answered by
1
Answer:
no.4 (a)
no.5(a)
no.6(a)
no.7(b)
no.8(d)
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